Inventor

Yasufumi Mizuta

Inventor

Osaka, JP

Overview

1991–2016

Patent span

Physics

Primary field (CPC G)

Patents· 20 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary

G03GElectrography66%

C07CAcyclic or carbocyclic compounds14%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments10%

C07DHeterocyclic compounds7%

G03CPhotosensitive materials for photographic purposes3%

PatentTitleYear

9,298,112'Method of manufacturing positively-charged single-layer electrophotographic photoreceptor, positively-charged single-layer electrophotographic photoreceptor, and image forming apparatus'2016 9,285,692'Positively-charged single-layer electrophotographic photoreceptor and image forming apparatus'2016 9,217,981'Positively-charged single-layer electrophotographic photoreceptor and image forming apparatus'2015 7,555,241'Image forming device using a single-layer-type electrophotographic photoconductor and image forming method using the same'2009 6,174,638'Naphthalenetetracarboxylic acid diimide derivatives and photosensitive materials for electrophotography'2001 6,127,076'Naphthalenetetracarboxylic acid diimide derivatives and photosensitive material for electrophotography'2000 5,994,012'Naphthoquinone derivative and electrophotosensitive material using same'1999 5,863,688'Naphthoquinone derivative'1999 5,773,613'Tryptoanthrinimine derivative and electrophotosensitive material using the same'1998 5,705,694'Trinitrofluoroenonimine derivative and electrophotosensitive material using the same'1998 5,616,441'Tryptoanthorine derivative contained in electrophotosensitive material'1997 5,550,290'Benzidine derivative and electrophotosensitive material using the same'1996 5,424,157'Electrophotosensitive material containing disazo compound as charge-generating agent'1995 5,336,576'Electrophotographic photosensitive member having a photosensitive layer comprising the azo compound'1994 5,288,576'Electrophotographic member having an azo compound with diphenoquinone'1994 5,274,084'Bisazo compounds which contain a diphenoquinone tetraazo component and an electrophotographic photosensitive member having a photosensitive layer comprising the bisazo compound'1993 5,260,157'Electrophotographic photosensitive element comprising a surface protective layer comprising an etherified melamine-formaldehyde resin'1993 5,185,228'Electrophotosensitive material containing p-benzylbiphenyl'1993 5,135,834'Electrophotographic polyvinyl acetal layer containing element and process of producing'1992 5,063,126'Electrophotographic photosensitive material'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1999Patents assigned to MITA INDUSTRIAL CO LTD (14)· patent assignee history

1991–2016Based in Osaka, JP· patent location history

1993–1994Based in Kishiwada, JP· patent location history

2000–2009Patents assigned to KYOCERA MITA CORP (3)· patent assignee history

2000–2001Based in Chuo-ku, JP· patent location history

2015–2016Patents assigned to KYOCERA DOCUMENT SOLUTIONS INC (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITA INDUSTRIAL CO LTD	14	1991–1999
KYOCERA DOCUMENT SOLUTIONS INC	3	2015–2016
KYOCERA MITA CORP	3	2000–2009

Locations

Location	Patents	Span
Osaka, JP	14	1991–2016
Kishiwada, JP	4	1993–1994
Chuo-ku, JP	2	2000–2001